Callsign:	YJTM4
MMSI number:	577189000
IMO number:	188130
Navigational status:	Under way (engine) (0)
Vessel class:	(90)
Destination:	NAVEGANTES_SC (ETA Sep19 21:00)
Location:	23°04.61' S 42°52.80' W - locator GG86NW41JN - show map 18.6 km South bearing 200° from Maricá, Maricá, Rio de Janeiro, Brazil [?] 31.4 km Southeast bearing 133° from Niterói, Rio de Janeiro, Brazil 38.7 km Southeast bearing 120° from Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil 68.3 km Southeast bearing 121° from Nova Iguaçu, Nova Iguaçu, Rio de Janeiro, Brazil
Last position:	2025-09-20 12:31:21 UTC (9h4m ago) 2025-09-20 09:31:21 -03 local time at Maricá, Brazil [?]
Course:	87° – heading 87°
Speed:	19 km/h
Dimensions:	length 84 m width 18 m draught 4.5 m
Last path:	YJTM4>ais via PY1AU
Positions stored:	22854

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.